Pole Scaffolds

A single-pole scaffold is a supported scaffold consisting of a platform(s) resting on bearers, the outside ends of which are supported on runners secured to a single row of posts or uprights, and the inner ends of which are supported on or in a structure or building wall.

A double pole (independent pole) scaffold is a supported scaffold consisting of a platform(s) resting on cross beams (bearers) supported by ledgers and a double row of uprights independent of support (except ties, guys, braces) from any structure.

Poles scaffolds must adhere to the following criteria:

• When platforms are being moved to the next level, the existing platform must be left undisturbed until the new bearers have been set in place and braced, prior to receiving the new platforms.
• Crossbracing must be installed between the inner and outer sets of poles on double pole scaffolds.
• Diagonal bracing in both directions must be installed across the entire inside face of double-pole scaffolds used to support loads equivalent to a uniformly distributed load of 50 pounds or more per square foot.
• Diagonal bracing in both directions must be installed across the entire outside face of all double- and single-pole scaffolds.

Poles scaffolds must adhere to the following additional criteria:

• Runners and bearers must be installed on edge.
• Bearers must extend a minimum of 3 inches over the outside edges of runners.
• Runners must extend over a minimum of two poles, and must be supported by bearing blocks securely attached to the poles.
• Braces, bearers, and runners must not be spliced between poles.
• Where wooden poles are spliced, the ends must be squared and the upper section must rest squarely on the lower section. Wood splice plates must be provided on at least two adjacent sides, and must extend at least 2 feet on either side of the splice, overlap the abutted ends equally, and have at least the same cross-sectional areas as the pole. Splice plates of other materials of equivalent strength may be used.
• Pole scaffolds over 60 feet in height must be designed by a registered professional engineer, and must be constructed and loaded in accordance with that design. For pole scaffolds under 60 feet in height, consult 29 CFR 1926 Subpart L, Appendix A for how to comply with design and loading requirements.

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